/// <summary>
/// Saves reference to message envelope as array of bytes.
/// </summary>
/// <param name="reference">The reference to to message envelope.</param>
/// <returns>byte array that could be used to rebuild reference</returns>
public static byte[] SaveEnvelopeReference(EnvelopeReference reference)
{
// important to use \r\n
var builder = new StringBuilder();
builder
.Append("[cqrs-ref-r1]\r\n")
.Append(reference.StorageContainer).Append("\r\n")
.Append(reference.StorageReference);
return Encoding.Unicode.GetBytes(builder.ToString());
}
public static bool TryReadAsEnvelopeReference(byte[] buffer, out EnvelopeReference reference)
{
if (BytesStart(buffer, Reference))
{
var text = Encoding.Unicode.GetString(buffer);
var args = text.Split(new[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
reference = new EnvelopeReference(args[1], args[2]);
return true;
}
reference = null;
return false;
}
CloudQueueMessage PrepareCloudMessage(byte[] buffer)
{
if (buffer.Length < AzureMessageOverflows.CloudQueueLimit)
{
// write message to queue
return new CloudQueueMessage(buffer);
}
// ok, we didn't fit, so create reference message
var referenceId = DateTimeOffset.UtcNow.ToString(DateFormatInBlobName) + "-" + Guid.NewGuid().ToString().ToLowerInvariant();
_cloudBlob.GetBlobReference(referenceId).UploadByteArray(buffer);
var reference = new EnvelopeReference(_cloudBlob.Uri.ToString(), referenceId);
var blob = AzureMessageOverflows.SaveEnvelopeReference(reference);
return new CloudQueueMessage(blob);
}
